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<?php declare(strict_types=1); |
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/** |
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* This file is part of the Csv-Machine package. |
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* |
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* (c) Dan McAdams <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace RoadBunch\Csv\Formatter; |
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use RoadBunch\Csv\Exception\FormatterResultException; |
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/** |
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* Class Formatter |
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* |
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* @author Dan McAdams |
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* @package RoadBunch\Csv\Formatter |
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*/ |
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class Formatter implements FormatterInterface |
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{ |
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/** @var callable */ |
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protected $callback; |
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/** |
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* Formatter constructor. |
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* |
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* @param callable $callback |
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*/ |
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public function __construct(callable $callback) |
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{ |
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$this->callback = $callback; |
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} |
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/** |
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* @param array $data an array of strings to be formatted |
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* |
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* @return array |
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* @throws \InvalidArgumentException|FormatterResultException |
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*/ |
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public function format(array $data): array |
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{ |
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$formatted = []; |
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foreach ($data as $element) { |
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// assert element to format is string |
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$this->assertString($element); |
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// assert resulting element is string |
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$this->assertResultString($formattedElement = call_user_func($this->callback, $element)); |
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$formatted[] = $formattedElement; |
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} |
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return $formatted; |
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} |
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/** |
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* @param $value |
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* @throws \InvalidArgumentException |
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*/ |
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protected function assertString($value) |
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{ |
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if (!is_string($value)) { |
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throw new \InvalidArgumentException('All elements of the array must be strings'); |
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} |
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} |
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/** |
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* @param $result |
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* @throws FormatterResultException |
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*/ |
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protected function assertResultString($result) |
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{ |
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if (!is_string($result)) { |
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throw new FormatterResultException('Formatter must result in an array of strings'); |
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} |
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} |
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} |
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The-Road-Bunch /
csv-machine
